LM2677

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SNVS077I – MAY 2004 – REVISED JUNE 2012

Absolute Maximum Ratings

(1) (2)

Input Supply Voltage

45V

ON/OFF Pin Voltage

−0.1V to 6V

Boost Pin Voltage

Feedback Pin Voltage

−0.3V to 14V

Power Dissipation

Internally Limited

2 kV

Storage Temperature Range

−65°C to 150°C

Soldering Temperature

Wave

4 sec, 260°C

Infrared

10 sec, 240°C

Vapor Phase

75 sec, 219°C

(1)

Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings indicate conditions under

which of the device is ensured. Operating Ratings do not imply ensured performance limits. For ensured performance limits and

associated test condition, see the electrical Characteristics tables.

(2)

If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and

specifications.

(3)

The absolute maximum specification of the 'Switch Voltage to Ground' applies to DC voltage. An extended negative voltage limit of -10V

applies to a pulse of up to 20 ns, -6V of 60 ns and -3V of up to 100 ns.

(4)

ESD was applied using the human-body model, a 100pF capacitor discharged through a 1.5 k

Ω resistor into each pin.

Operating Ratings

Supply Voltage

8V to 40V

−40°C to 125°C

LM2677-3.3 Electrical Characteristics

Limits appearing in bold type face apply over the entire junction temperature range of operation,

−40°C to 125°C.

Symbol

Parameter

Conditions

Units

Output Voltage

3.3

3.234

3.366

V

3.201

3.399

η

Efficiency

82

%

(1)

(2)

All limits are specified at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature

standard standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

LM2677-5.0 Electrical Characteristics

Symbol

Parameter

Conditions

Units

Output Voltage

5.0

4.900

5.100

V

4.850

5.150

η

Efficiency

84

%

(1)

(2)

All limits are specified at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature

standard standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

LM2677-12 Electrical Characteristics

Symbol

Parameter

Conditions

Units

Output Voltage

12

11.76

12.24

V

11.64

12.36

η

Efficiency

92

%

(1)

(2)

All limits are specified at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature

standard standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

Copyright © 2004–2012, Texas Instruments Incorporated

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